SAU Machinery and Equipment Co.,Ltd professional engaged in diving breathing empty pressure machine, fire breathing empty pressure machine, valve instrument detection empty pressure machine, gas pipeline detection empty pressure machine, car modified detection compressor, PET blow bottle empty pressure machine, ship dedicated empty pressure machine, chemical pharmaceutical no oil empty pressure machine, shooting movement high pressure compressor of custom and development, this company production of piston type in the high pressure empty pressure machine, micro high pressure air compressor, big displacement high pressure empty pressure machine, Oil-free piston air compressor, oil-free scroll air compressor, CNG gas compressors, screw-type air compressor of superior performance, quality assurance